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(No'ModeL) W SCOTT Sheet Delivery Apparatus for Printing Machines.

Patented Oct. 26, 1880.

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e W. SCOTT. Sheet Delivery Apparatus for Printing Machines.

No. 233,641. Patented Oct. 26,1880.

Winessea;

inventor Walter Sam/'15 I ILPEI'ERS, PHOTILUTHOGRAPMER. WASNINGTUN, D Cv WALTER SCOTT, OF PLAINFIELD, NEW JERSEY.

SHEET-DELIVERY APPARATUS FOR PRINTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 233,641, dated. October 26, 1880.

Application filed March 25, 1880. (No model.)

To all whom it may concern Be it known that I,WALTER SCOTT, of Plainfield, in the county of Union and State of New Jersey, have invented a certain new and useful improvement in Sheet-Delivery Apparatus forPrinting-ll/Iachines, which is fully described in the following specification, reference being had to the accompanying drawings, in which- Figure 1 represents a front-side elevation of a machine embodying my improvements; Fig. 2, a rear-side elevation of the same with the rear portion of the frame broken away; Fig. 3, a transverse section on an enlarged scale,taken on the line :20 m, Fig. 1; Fig. 4, a front elevation of the folding-cylinder, detached, on the same scale; Fig. 5, a rear elevation of the same on the same scale; Fig. 6, a transverse section of the same on a still further enlarged scale, taken on the line y y, Fig. 4; Fig. 7, a longitudinal vertical section of the entire machine on the same scale as Figs. 1 and 2, taken on the line 2 z, Fig. 3; and Fig. 8, a perspective view of the creasing-blade, detached.

My invention relates to machines for printing, folding, and delivering newspapers, in which the entire operation is performed automatically by a single machine, the present improvements referring more especially to the mechanism for folding the sheets of paper and delivering them in this folded form.

The invention consists in special mechanism for folding the sheets after they are printed and severed.

lt also consists in special mechanism, operatin g in connection with the folding devices to deliver the sheets from the latter after they have been folded.

The construction of the devices by means of which these operations are performed, and their arrangement in a practically organized machine for printing and separating sheets of paper, and folding and delivering the same in the shape of folded newspapers, will be hereinafter fully and particularly described, and the improvements, which it is believed are novel, pointed out definitely in the claims.

In the drawings, A represents the main or supporting frame in which the various mechanisms are mounted, and B B the last pair of printing-cylinders belonging to the machine,

which is sufficient for the present purpose of illustration, as the construction of the main portion of the machine may be of any ordinary description.

In rear of the printing-cylinders are ordinary cutting-cylinders G G, the former being provided with a perforating or cutting blade, 0, and the latter with an ordinary cuttinggroove, 0. I prefer to use an ordinary perforating -blade; but a knife which will entirely sever the sheets may be employed, if desired.

A set of conveying-tapes, D, is arranged in rear of the cutting-cylinders, running horizontally over tape-rolls cl d, the first just in rear of the grooved cylinder G, and the latter mounted near the rear end of the frame. A similar set of tapes, D, is arranged immediately below the first set named, running horizontally over tape-rolls (1 d arranged, respectively, immediately below the rolls (1 cl.

At the rear end of the frame A is a foldingcylinder, E, having its journal-bearings below the line of the carryingtapes, and with its upper surface in about the same plane as the plane of delivery of these tapes. This cylinder is provided with a longitudinal opening or slot, 0, in its surface, extending from end to end thereof, and in it are arranged two ordinary folding-rollers, F F, being mounted in suitable hearings on the cylinder, and arranged with the centers of their shafts or axis of revolution in the same are as the circumference of the cylinder, as shown in Fig. 6 of the drawings.

The second or rear roller, F, with reference to the rotation of the carrying-cylinder, is provided, at its end on the front side of the machine, with a pinion,f. The front roller, F, is also provided, at its corresponding end, with a similar pinion, f, the two meshing with each other; and the roller F is also provided, at its opposite end, with a similar pinion,f on the projecting end of the roller-shaft.

About a quarter of.theway round the cylinder, going backward from the slot 6, is a I u I similar opening or slot, 6, in which, but within the periphery of the cylinder, is mounted a roller, G, and a set of ordinary tapes, g, is arranged to run around the folding-roller F and this roller G, inside of the carrying-cylinder, on their upper section and at their forward ends, being in contact also with the roller F, as shown in Fig. 6 of the drawings.

A guide, H, is arranged inside of the cylinder, just over the tapes 9. A curved shield, 0 is arranged on the periphery of the cylinder in front of the roller F, up over which it extends, so as to cover about half its upper surface, more or less. An ordinary creasin g-blade, I, is also mounted on the periphery of the cyl inder, being arranged at the rear edge of the opening 6.

The rear foldingroller, F, is shown in the drawings provided with grooves, in which the tapes 9 run. This construction is shown here merely for convenience to keep the tapes in place, and in a full-sized machine will not be used, as they would crease or wrinkle the paper. This roller should be plain-surfaced where the tapes run in contact with it.

A rotary carrier, J, is mounted in the main frame immediately above the cylinder E. ()n the periphery of this carrier is monnteda creasing-blade, K, and also a set of ordinary folding spring-gripers, L, which are arranged to operate in connection with an ordinary grooved griper-bar, M. The radius of this bar and the creaser K is about the same as that of the folding-cylinder below.

The rock-shaft to which the gripers are attached is 1)IOl(l6(l at one end with a crankarm, Z, which moves in contact with a cam,j, through which the shaft of the carrier J passes, but which is fastened to the frame so as to remain in a fixed position. The gripers are opened and closed at proper intervals by the operation of the cam and crank-arm.

The creasing-blade K is provided in its edge with a series of notches or recesses, as shown in Fig. 8 of the drawings, and the griper-bar M is also provided with a series of similar transverse recesses, m.

On the periphery of the folding-cylinder E is a series of projections, 6 arranged lengthwise ot' the cylinder, and in the carrier above are recesses j, arranged so that on the revolution of these two devices the projections will enter the recesses.

A cylinder, N, is mounted just in rear of the carrier J, its surface being plain, with the exception of a longitudinal groove, 01., which is for the accommodation of the creaser K, the cylinder being arranged to run in contact with the carrier.

The cylinder E and carrier J are of the same radius, and the gear-wheels on their shafts, by which they are connected, are of the same size, so that both move at the same rate of speed.

From this arrangement, as about half of the folding-rollers project outside of the periphery of the cylinder E, and the creaser K has about the same radius as the carrier, the action of the said creaser as it bends the paper into the rollers is something the same as a tooth on one of the gear-wheels entering between two teeth 011 the other wheel.

A series of strippers, O, are arranged in front of and extending over the cylinder N, being fastened to a bar, 0, running across the machine, as shown in Fig. 3 of the drawings. The lower ends of these strippers are arranged to enter the transverse grooves or recesses in the griper-bar M, for the purpose of stripping off the folded sheet at the moment it is released by the gripers, thereby transferring it to the cylinder N, by which it is carried up and delivered at the rear of the machine to other folding mechanism, a packing device, or any other device which may be desired.

The recesses or notches in the creaser K are for the purpose of accommodating the strippers as the creaser is rotated.

It will be understood, of course, that the machine is provided with suitable gearing for producing the movements required, arranged and timed so as to operate the special devices at the desired moments. Gearing suitable for this purpose is clearly shown in the drawings; but I do not deem it necessary to go into adescription of the construction and arrangement thereof, as it is a matter of mechanical detail which will be well understood by any person familiar with machines of this description. To this I make one exception. As will hereinafter appear from the description of the operation of this machine, it is necessary that the speed of the folding-cylinder, rotary carrier, and folding-rollers should be so related that the on ce-folded sheet will be projected one-half its width out of the cylinder over the creaserI just at the time that the latter comes into contact with the gripers. T will explain the train of gearing by which I accomplish this result. The folding-cylinder E is driven from the shaft P by suitable gearing. On the other end of the shaft of the cylinder E is a gear-wheel, Q, which engages with a similar wheel which is on the corresponding end of the shaft of the carrier, thereby giving rotation to the latter. At the opposite end of the carrier-shaft is a gearwheel, S, and on the corresponding end of the shaft of the cylinder E is a gear-wheel, T, mounted loosely on the shaft, and a transmitting-wheel, s, is arranged to engage with both the wheels S and T, thereby giving the wheel T a rotary movement in an opposite direction to the movement of the cylinder. A gear-wheel, U, is fixed to the wheel T, being also mounted loosely on the cylinder-shaft, and with this latter the pinion f en gages, thereby transmitting motion to the roller F, and through the latter to the rollerF, and from the backward rotation of the wheel U the rotary movement of the rollers F F will obviously be inward. This train of gearing just described is so timed as to produce the result mentioned above, so as to project the once-folded sheet just far enough outside of the cylinder to receive the second fold at the proper moment and at the proper place.

The operation of this machine is as follows: The printed web passes underneath the cutting-cylinders, as shown in dotted lines in Fig. 7 of the drawings, where the sheets are perforated along the line of desired division, thence the web of perforated sheets is delivered to the tapes D D, by which it is conveyed rearward to the folding mechanism, and the leading end delivered in between the foldingcylinder and carrier, being carried over the former until the bite of the rollers F F is brought underneath the sheet, which should then be just, or about, half-way over the cylinder, and the tail end not yet freed from the tapes. At this moment the creaser K is brought into operation, and bends or creases the sheet in between the rollers F F, where it is taken folded by the tapes g.

Prior to the operation of the creaser the sheet has been broken away from the web by being nipped between the projections e and recesses j, which travel faster than the tapes; but this breakin g or separating device may be dispensed with, and the separation of the sheets effected by the creaser alone in the operation of bending the sheet into the rollers.

The once-folded sheet is conveyed by the tapes 9 through the cylinder, and out through the opening 6, being carried around at the same time with the cylinder, while the guide H keeps the sheets straight and prevents wrinkling. The folded sheet as it is delivered out of the cylinder falls back over the creaser I, and will project half its width just as the latter is brought into action with the gripers L, and is then bent or creased into said gripers, thereby receiving a second fold parallel to the first. The folded sheet is then carried around by the carrier until, just as the gripers reach the lower ends of the strippers 0, they are opened to release the sheet, which is then transferred, by the action of these strip pers, to the cylinder N, passing upon the latter underneath the strippers, and delivered twice folded at the rear of the machine. The shield c prevents the leading end of the sheet from being retarded or thrown back by the rotation of the roller F, which is in the opposite direction to the movement of the sheet.

It will be noticed that with this mechanism the first crease or fold is made in the sheet before it has entirely left the carrying-tapes, and that the second fold is made by creasing it back into the cylinder which carries the first creaser-that is, the creaser for making the first fold.

The gearing and some other devices may be changed in construction and arrangement without materially changing the principle of operation in this machine; hence I do not limit myself to specific details in all respects.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a paper-folding machine, the foldingcylinder provided with mechanism for receiving the folded sheet and transferring it lat erally through said cylinder, and provided also with a creaser, in combination with a rotary carrier having a creaser and griping mechanism, the parts operatin g in connection with each other, as explained, whereby the sheet is folded into the cylinder, passed through said cylinder, transferred directly to and folded upon the carrier, substantially as described.

2. The cylinder E, provided with the foldingrollers F F, tapes g, and creaser I, in combination with the rotary carrier J, provided with the creaser K and gripers L, substantially as described.

3. The cylinder E, in combination with the folding-rollers F F, tapes 9, and guide H, said tapes and guide being adapted to transfer the sheets from one side of the cylinder and deliver them to the other, substantially as described.

4. A foldingcylinder provided with a pair of folding-rollers and a creaser, the latter arranged at about a quarter of the circumference back of the former, in combination with a rotary carrier provided with a creaser and folding-gripers, the latter arranged at a like distance behind the former, and a transferring device which operates'to take the folded sheet from the folding-rollers and deliver it through the cylinder out over the creaser thereon, substantially as described.

5. The shield c on the cylinder E, in combination with the rollers F F, substantially as and for the purpose set forth.

6. The folding-cylinder E, in combination with the carrier J, both having substantially the same radius, and moving at or about the same speed, the folding-rollers F F, projecting abouthalf-way outside the periphery of the folding-cylinder, and the creaser I, having about the same radius as the carrier, whereby the creaser enters between the rollers and passes out like a gear-tooth, entering between two others, and thus bends the sheet into the folding-rollers without binding, substantially as described.

WALTER SCOTT.

Witnesses JNo. O. MaoGnneon, W. O. OORLIEs. 

